Ключевые слова: aged, analog, background, blue, capacitor, capacitors, circuit, circuits, color, components, computer, connections, dark, decorative, design, device, diagram, document, drawing, electric, electrical, electrics, electronic, elements, graphics, grunge, grungy, guide, handbook, illustration, instruction, montage, obsolete, old, paper, parts, plan, radio, retro, schematic, schematics, sdf, symbols, technical, techno, technology, television, vignette, vintage,